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KOP to GRK: distance & flight time
Nakhon Phanom (Nakhon Phanom Airport) → Killeen (Robert Gray Army Air Field Airport)
8,772 mi
14,117 km · 7,622 nm
17h 40m
estimated nonstop flight time
-12h
time difference · heading northeast
See live KOP→GRK fares Phone-only fares on this route — call free
Flight time details
8,772 miles nonstop takes roughly 17h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- KOP — Nakhon Phanom Airport · Nakhon Phanom, Thailand
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 mi away
Near GRK
- HLR · Hood Army Air Field8 mi away
- AUS · Austin Bergstrom International Airport61 mi away
- TPL · Draughon Miller Central Texas Regional Airport26 mi away
- ACT · Waco Regional Airport52 mi away
Frequently asked questions
How far is KOP from GRK?
The flight distance from Nakhon Phanom (KOP) to Killeen (GRK) is 8,772 miles (14,117 km, 7,622 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOP to GRK?
A nonstop flight takes about 17h 40m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Nakhon Phanom and Killeen?
Killeen is 12 hours behind Nakhon Phanom.
What is the cheapest way to fly from KOP to GRK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOP–GRK that never appear on search engines, with no booking fees.